Analysis of Fusel Oil by Azeotropic Distillation

Schicktanz, S.T.; Etienne, A D; Steele, W. I.

doi:10.1021/ac50136a003

Cited by 8 publications

(3 citation statements)

References 2 publications

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“…In Colombia, sugar cane is the main bioethanol feedstock, and a typical FO composition obtained from cane sugar fermentation is reported in Table . In different countries, similar compositions are also reported when using other fermentation feedstock such as corn, grapes, sugar beet molasses, and malt. − As observed, regardless the feedstock, isoamyl alcohol (3-methyl-1-butanol) and optically active amyl alcohol (2-methyl-1-butanol) are the major components of FO, mainly because they are characteristic products of the Ehrlich metabolic pathway during fermentation …”

Section: Introductionsupporting

confidence: 60%

Vapor–Liquid Equilibrium for Binary Mixtures of Acetates in the Direct Esterification of Fusel Oil

Sánchez

Orjuela

et al. 2016

J. Chem. Eng. Data

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In this work, isobaric vapor–liquid equilibrium data for the binary mixtures of the isobutyl acetate + isoamyl acetate and isobutyl acetate + ethyl acetate were measured using an all-glass dynamic-recirculation still equipped with a Cottrell circulation pump (Labodest VLE 602D). For the system of isobutyl acetate + isoamyl acetate the measurements were carried out at 100 and 150 kPa, while for the system isobutyl acetate + ethyl acetate they were performed at 50, 100, and 150 kPa. Vapor pressures of the pure components were also measured to verify the performance and reliability of the equilibrium still, and data were correlated with an Antoine-type expression. The equilibrium data for the pure components were in agreement with literature reports and the data for the binary solutions show a fairly ideal behavior. Binary parameters for nonrandom two liquid (NRTL) and universal quasichemical (UNIQUAC) equations were correlated with experimental data, and both models showed good agreement with experiments and can be used for process design. It was found that, in the absence of experimental data, phase equilibrium in mixtures of acetates formed in the direct esterification of the fusel oil can be confidently predicted using the UNIFAC-DMD model or even the Ideal Model.

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Section: Introductionsupporting

confidence: 60%

Vapor–Liquid Equilibrium for Binary Mixtures of Acetates in the Direct Esterification of Fusel Oil

Sánchez

Orjuela

et al. 2016

J. Chem. Eng. Data

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“…The first ones were developed in the first half of the 20th century. Penniman et al (1937), through colorimetric methods, Schicktanz et al (1939) using azeotropic distillation, and Ikeda et al (1956) from chromatographic analysis, were able to identify the main alcohols (C2 to C5) present in fusel oil from different sources. Marvel and Hager (1924) and Webb et al (1952) found esters derived from short-chain alcohols, mainly i-amyl alcohol, and some carboxylic acids (C10 to C20).…”

Section: Introductionmentioning

confidence: 99%

Colombian fusel oil

Montoya¹,

Duran²,

Córdoba³

et al. 2016

ing.inv.

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By-products valorization in bio-fuels industry is an important issue for making the global process more efficient, more profitable and closer to the concept of biorefinery. Fusel oil is a by-product of bioethanol production that can be considered as an inexpensive and renewable raw material for manufacturing value-added products. In this work, results in terms of composition and physicochemical properties of six samples of fusel oil from industrial alcohol facilities are presented. Composition of the main components was established by gas chromatography. Complementary techniques, such as headspace solid-phase microextraction and gas chromatography-mass spectrometry (GC-MS), were used for detection of minor components. Fifty-five compounds were identified. Physicochemical properties such as density, acid value, moisture content and true boiling point curves were determined. Results are useful in the conceptual design of separation strategies for recovering higher alcohols, as well as to consider new options of valorization alternatives for fusel oil.Keywords: Fuel ethanol, higher alcohols, GC-MS analysis, solid-phase microextraction, TBP. RESUMENLos subproductos para valorización en la industria de los biocombustibles es un tema importante para alcanzar un proceso global más eficiente, más rentable y más cerca del concepto de biorrefinería. El aceite de fusel es un subproducto de la producción de bioetanol que se puede considerar como una materia prima barata y renovable para la fabricación de productos de valor agregado. En este trabajo se presentan los resultados en términos de composición y de las propiedades físico-químicas de seis muestras de aceite de fusel de las instalaciones industriales de alcohol. La composición de los componentes principales se estableció mediante cromatografía de gases. Técnicas complementarias, como espacio de cabeza, microextracción en fase sólida, y cromatografía de gasesespectrometría de masas (GC-MS), fueron utilizadas para la detección de componentes menores. Se identificaron cincuenta y cinco compuestos. Se determinaron las propiedades físico-químicas, como la densidad, el índice de acidez, el contenido de humedad y las curvas de puntos verdaderos de ebullición. Los resultados son útiles en el diseño conceptual de las estrategias de separación para la recuperación de alcoholes superiores, así como para comprobar las opciones de alternativas de valorización del aceite de fusel Palabras Clave: Etanol-combustible, alcoholes pesados, análisis GC-MS, micro-extracción en fase sólida, TBP.

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“…A quantidade de álcoois superiores gerados durante a fermentação alcoólica depende do método de preparação do caldo usado para a fermentação e das condições ambientais utilizadas durante o processo de fermentação (PATIL et al, 2002;SCHICKTANZ, et al, 1939). Patil et al (2002) listaram alguns fatores que influenciam a formação de álcoois superiores durante a fermentação:…”

Section: Origem Dos áLcoois Superiores No Processo De Fermentaçãounclassified

Estudo do processo de destilação de óleo fúsel

Ferreira¹

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Analysis of Fusel Oil by Azeotropic Distillation

Cited by 8 publications

References 2 publications

Vapor–Liquid Equilibrium for Binary Mixtures of Acetates in the Direct Esterification of Fusel Oil

Vapor–Liquid Equilibrium for Binary Mixtures of Acetates in the Direct Esterification of Fusel Oil

Colombian fusel oil

Estudo do processo de destilação de óleo fúsel

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